Thank you for your answer. I would love to do it this way, unfortunately our current system wouldn't allow it. With more than 5000 products on our website, different content for each color variation would be time consuming.

My question was about "noindex,follow" on children products (with the proper canonicalisation) and its SEO impact. But my guess is that canonicalisation should be enough to address the issue.

Thank you for your answer. Great job on this guide! Actually, we already did this on our product listing pages (a combination of next/prev, noindex/follow and canonicals). It worked great.

However, our current issue is about our product pages. I'm wondering if a combination of canonicalisation and noindex on secondary content would be relevant.

Hello,

We currently have a lot of color variations on multiple products with almost the same content. Even with our canonicals being set, Moz's crawling tool seems to flag them as duplicate content.

What we have done so far:

• Choosing the best-selling color variation (our "master product")
• Adding a rel="canonical" to every variation (with our "master product" as the canonical URL)

In my opinion, it should be enough to address this issue. However, being given the fact that it's flagged as duplicate by Moz, I was wondering if there is something else we should do?

Should we add a "noindex,follow" to our child products and "index,follow" to our master product? (sounds to me like such a heavy change)

Thank you in advance